folate (fÅËÂ·lÄt), n a B vitamin that is present in leafy green vegetables, dry peas and beans, and fortified breads and cereals. Folate deficiency may increase the risk of certain cancers, Alzheimer's disease, and certain birth defects, such as neural tube defects.
World's oldest twins are 102-year-old Scottish sisters, says Guinness World Records. Twins Evelyn (left) and Edith (right) celebrate their 102 birthday. Guinness World Records has declared the pair from Scotland the world's oldest twins.
1 The chances of having identical twins is about 1 in 285 or 3.5 per 1000 maternities.  The Yoruba tribe of Nigeria have the highest twinning rate in the entire world (3 sets of twins in every 19 births). The Nigerian people attribute it to their population's consumption of a specific type of yam.